Win10 system how to clean up old system backup files Windows.old

A lot of users have upgraded to the latest Win10 system through Win7/Win8/Win8.1, and using the upgrade method to install win10 will leave a backup of Windows.old on the C drive. Many users use the delete method to find Windows. .old can't be deleted, prompting insufficient permissions requires SYSTEM permission to operate, so how do we deal with it?

In fact, we do not need to delete this. In the Win10 system, the same disk cleaning tool is used. The cleaning tool can smoothly remove some old files. The operation method is as follows.

1, open “ my computer & rdquo; (this computer) into the hard drive, find the C drive 2, right click on the mouse & ldquo; C drive & rdquo; & mdash; & mdash; in the pop-up menu, Select “Properties”3, select “Disk Cleanup", then scan, wait a few minutes, wait 4 minutes, scan is complete, select “clean system files”, also scan the system, wait patiently Minute 5, after the scan is completed, in the pop-up window, find "Previous windows installation", put this item in front of √, then make sure to clean up. 6. This step may take longer, depending on the size of the backup file, the time will be different, wait patiently again. After the prompt is completed, enter the C drive, you will find that the WINDOWS.OLD file is gone, or become 0KB

The above is about the alternative method to handle the entire contents of the WINDOWS.OLD file, I hope everyone can like it.